Cross-sections of photonuclear reactions 65Cu(γ, n)64Cu and 63Cu(γ, xn)63−xCu in the energy range E γmax = 35–94 MeV

Abstract

The flux-averaged cross-sections for the reactions , , , and have been measured within the bremsstrahlung end-point energy range of 35–94 MeV. The experiments were performed with the electron beam from the NSC KIPT linear accelerator LUE-40 with the use of the activation and off-line γ-ray spectrometric techniques. Theoretical calculation of the flux-average cross-sections was conducted using the cross-section values from the TALYS1.95 code, run with default options. It is shown that the experimental average cross-sections for the reactions , , and are systematically higher than the theoretical estimates based on the TALYS1.95 code. The obtained values supplement the data of different laboratories for the and reactions of and . For the reaction , the values of were measured for the first time.